| CPC H04L 12/1895 (2013.01) [H04L 12/1822 (2013.01)] | 7 Claims |
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7. A non-transitory computer readable recording medium storing a program causing a computer to perform:
obtaining first information on volume of internal sound in a conference room detected by a sound detection device that detects the internal sound in the conference room during a conference in the conference room;
obtaining second information that is at least one or more pieces of additional information among (a) information indicating confidentiality of the conference held in the conference room, (b) information on volume of a sound around the conference room, (c) attribute information on a present member around the conference room, or (d) information on sound insulation of the conference room;
deriving an index value that represents risk of information leakage due to sound leakage, based at least on the obtained first information on the volume of the internal sound in the conference room and the obtained second information; and
causing an output device or an information terminal device installed in the conference room to issue an alert, if the index value is equal to or more than a predetermined threshold value.
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